Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Reexamination Certificate
2007-09-27
2008-12-02
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
C418S055300, C418S057000
Reexamination Certificate
active
07458788
ABSTRACT:
A scroll fluid machine is capable of readily providing a back-pressure chamber having an increased pressure-receiving area and yet capable of being reduced in size. A fixed scroll member is secured to a casing. An orbiting scroll member is provided at a position facing the fixed scroll member. A holder is provided at the back of the orbiting scroll member, and a coupling member is provided to face the orbiting scroll member across the holder. The coupling member couples together the orbiting scroll member and a driving shaft and performs an orbiting motion together with the orbiting scroll member. A back-pressure plate is provided at the back of the orbiting scroll member, and a back-pressure chamber is formed between the back-pressure plate and the holder.
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patent: 6190145 (2001-02-01), Fujioka et al.
patent: 6592345 (2003-07-01), Suefuji et al.
patent: 6716009 (2004-04-01), Sowa et al.
patent: 06213174 (1994-08-01), None
patent: 2004-028033 (2004-01-01), None
Fukui Koji
Hidano Katsushi
Iwano Kiminori
Komai Yuji
Komatsu Kazunari
Hitachi , Ltd.
Trieu Theresa
Wenderoth , Lind & Ponack, L.L.P.
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